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* sched: Rename sched.c as sched/core.c in comments and DocumentationViresh Kumar2013-06-1921-26/+27
| | | | | | | | | | | | | | | | | Most of the stuff from kernel/sched.c was moved to kernel/sched/core.c long time back and the comments/Documentation never got updated. I figured it out when I was going through sched-domains.txt and so thought of fixing it globally. I haven't crossed check if the stuff that is referenced in sched/core.c by all these files is still present and hasn't changed as that wasn't the motive behind this patch. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/cdff76a265326ab8d71922a1db5be599f20aad45.1370329560.git.viresh.kumar@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched: Femove the useless declaration in kernel/sched/fair.cMichael Wang2013-06-191-4/+0
| | | | | | | | | | default_cfs_period(), do_sched_cfs_period_timer(), do_sched_cfs_slack_timer() already defined previously, no need to declare again. Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/51AD8808.7020608@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched: Refine the code in unthrottle_cfs_rq()Michael Wang2013-06-191-1/+1
| | | | | | | | | Directly use rq to save some code. Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/51AD87EB.1070605@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/rt: Simplify pull_rt_task() logic and remove .leaf_rt_rq_listKirill Tkhai2013-06-192-67/+16
| | | | | | | | | | | | | | | | | | | | | | | [ Peter, this is based off of some of my work, I ran it though a few tests and it passed. I also reviewed it, and added my SOB as I am somewhat a co-author to it. ] Based on the patch by Steven Rostedt from previous year: https://lkml.org/lkml/2012/4/18/517 1)Simplify pull_rt_task() logic: search in pushable tasks of dest runqueue. The only pullable tasks are the tasks which are pushable in their local rq, and no others. 2)Remove .leaf_rt_rq_list member of struct rt_rq and functions connected with it: nobody uses it since now. Signed-off-by: Kirill Tkhai <tkhai@yandex.ru> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/287571370557898@web7d.yandex.ru Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge branch 'sched/urgent' into sched/coreIngo Molnar2013-06-192751-44689/+126641
|\ | | | | | | | | | | Merge in fixes before applying ongoing new work. Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * tracing/context-tracking: Add preempt_schedule_context() for tracingSteven Rostedt2013-06-192-1/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dave Jones hit the following bug report: =============================== [ INFO: suspicious RCU usage. ] 3.10.0-rc2+ #1 Not tainted ------------------------------- include/linux/rcupdate.h:771 rcu_read_lock() used illegally while idle! other info that might help us debug this: RCU used illegally from idle CPU! rcu_scheduler_active = 1, debug_locks = 0 RCU used illegally from extended quiescent state! 2 locks held by cc1/63645: #0: (&rq->lock){-.-.-.}, at: [<ffffffff816b39fd>] __schedule+0xed/0x9b0 #1: (rcu_read_lock){.+.+..}, at: [<ffffffff8109d645>] cpuacct_charge+0x5/0x1f0 CPU: 1 PID: 63645 Comm: cc1 Not tainted 3.10.0-rc2+ #1 [loadavg: 40.57 27.55 13.39 25/277 64369] Hardware name: Gigabyte Technology Co., Ltd. GA-MA78GM-S2H/GA-MA78GM-S2H, BIOS F12a 04/23/2010 0000000000000000 ffff88010f78fcf8 ffffffff816ae383 ffff88010f78fd28 ffffffff810b698d ffff88011c092548 000000000023d073 ffff88011c092500 0000000000000001 ffff88010f78fd60 ffffffff8109d7c5 ffffffff8109d645 Call Trace: [<ffffffff816ae383>] dump_stack+0x19/0x1b [<ffffffff810b698d>] lockdep_rcu_suspicious+0xfd/0x130 [<ffffffff8109d7c5>] cpuacct_charge+0x185/0x1f0 [<ffffffff8109d645>] ? cpuacct_charge+0x5/0x1f0 [<ffffffff8108dffc>] update_curr+0xec/0x240 [<ffffffff8108f528>] put_prev_task_fair+0x228/0x480 [<ffffffff816b3a71>] __schedule+0x161/0x9b0 [<ffffffff816b4721>] preempt_schedule+0x51/0x80 [<ffffffff816b4800>] ? __cond_resched_softirq+0x60/0x60 [<ffffffff816b6824>] ? retint_careful+0x12/0x2e [<ffffffff810ff3cc>] ftrace_ops_control_func+0x1dc/0x210 [<ffffffff816be280>] ftrace_call+0x5/0x2f [<ffffffff816b681d>] ? retint_careful+0xb/0x2e [<ffffffff816b4805>] ? schedule_user+0x5/0x70 [<ffffffff816b4805>] ? schedule_user+0x5/0x70 [<ffffffff816b6824>] ? retint_careful+0x12/0x2e ------------[ cut here ]------------ What happened was that the function tracer traced the schedule_user() code that tells RCU that the system is coming back from userspace, and to add the CPU back to the RCU monitoring. Because the function tracer does a preempt_disable/enable_notrace() calls the preempt_enable_notrace() checks the NEED_RESCHED flag. If it is set, then preempt_schedule() is called. But this is called before the user_exit() function can inform the kernel that the CPU is no longer in user mode and needs to be accounted for by RCU. The fix is to create a new preempt_schedule_context() that checks if the kernel is still in user mode and if so to switch it to kernel mode before calling schedule. It also switches back to user mode coming back from schedule in need be. The only user of this currently is the preempt_enable_notrace(), which is only used by the tracing subsystem. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1369423420.6828.226.camel@gandalf.local.home Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * sched: Fix clear NOHZ_BALANCE_KICKVincent Guittot2013-06-191-4/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have faced a sequence where the Idle Load Balance was sometime not triggered for a while on my platform, in the following scenario: CPU 0 and CPU 1 are running tasks and CPU 2 is idle CPU 1 kicks the Idle Load Balance CPU 1 selects CPU 2 as the new Idle Load Balancer CPU 2 sets NOHZ_BALANCE_KICK for CPU 2 CPU 2 sends a reschedule IPI to CPU 2 While CPU 3 wakes up, CPU 0 or CPU 1 migrates a waking up task A on CPU 2 CPU 2 finally wakes up, runs task A and discards the Idle Load Balance task A quickly goes back to sleep (before a tick occurs on CPU 2) CPU 2 goes back to idle with NOHZ_BALANCE_KICK set Whenever CPU 2 will be selected as the ILB, no reschedule IPI will be sent because NOHZ_BALANCE_KICK is already set and no Idle Load Balance will be performed. We must wait for the sched softirq to be raised on CPU 2 thanks to another part the kernel to come back to clear NOHZ_BALANCE_KICK. The proposed solution clears NOHZ_BALANCE_KICK in schedule_ipi if we can't raise the sched_softirq for the Idle Load Balance. Change since V1: - move the clear of NOHZ_BALANCE_KICK in got_nohz_idle_kick if the ILB can't run on this CPU (as suggested by Peter) Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1370419991-13870-1-git-send-email-vincent.guittot@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * sched/x86: Construct all sibling maps if smtAndrew Jones2013-05-311-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 316ad248307fb ("sched/x86: Rewrite set_cpu_sibling_map()") broke the construction of sibling maps, which also broke the booted_cores accounting. Before the rewrite, if smt was present, then each map was updated for each smt sibling. After the rewrite only cpu_sibling_mask gets updated, as the llc and core maps depend on 'has_mc = x86_max_cores > 1' instead. This leads to problems with topologies like the following (qemu -smp sockets=2,cores=1,threads=2) processor : 0 physical id : 0 siblings : 1 <= should be 2 core id : 0 cpu cores : 1 processor : 1 physical id : 0 siblings : 1 <= should be 2 core id : 0 cpu cores : 0 <= should be 1 processor : 2 physical id : 1 siblings : 1 <= should be 2 core id : 0 cpu cores : 1 processor : 3 physical id : 1 siblings : 1 <= should be 2 core id : 0 cpu cores : 0 <= should be 1 This patch restores the former construction by defining has_mc as (has_smt || x86_max_cores > 1). This should be fine as there were no (has_smt && !has_mc) conditions in the context. Aso rename has_mc to has_mp now that it's not just for cores. Signed-off-by: Andrew Jones <drjones@redhat.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: a.p.zijlstra@chello.nl Cc: fenghua.yu@intel.com Link: http://lkml.kernel.org/r/1369831695-11970-1-git-send-email-drjones@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * Merge branch 'mn10300' (mn10300 fixes from David Howells)Linus Torvalds2013-05-303-13/+9
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge mn10300 fixes from David Howells. * emailed patches from David Howells <dhowells@redhat.com>: MN10300: Need pci_iomap() and __pci_ioport_map() defining MN10300: ASB2305's PCI code needs the definition of XIRQ1 MN10300: Enable IRQs more in system call exit work path MN10300: Fix ret_from_kernel_thread
| | * MN10300: Need pci_iomap() and __pci_ioport_map() definingDavid Howells2013-05-301-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Include the generic definitions of pci_iomap() and __pci_ioport_map() otherwise we can get errors like: lib/pci_iomap.c: In function 'pci_iomap': lib/pci_iomap.c:37: error: implicit declaration of function '__pci_ioport_map' lib/pci_iomap.c:37: warning: return makes pointer from integer without a cast and: drivers/pci/quirks.c: In function 'disable_igfx_irq': drivers/pci/quirks.c:2893: error: implicit declaration of function 'pci_iomap' drivers/pci/quirks.c:2893: warning: initialization makes pointer from integer without a cast drivers/pci/quirks.c: In function 'reset_ivb_igd': drivers/pci/quirks.c:3133: warning: assignment makes pointer from integer without a cast Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ken Cox <jkc@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * MN10300: ASB2305's PCI code needs the definition of XIRQ1David Howells2013-05-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code for PCI in the ASB2305 needs the definition of XIRQ1 from proc/irq.h otherwise the following error appears: arch/mn10300/unit-asb2305/pci.c: In function 'unit_pci_init': arch/mn10300/unit-asb2305/pci.c:481: error: 'XIRQ1' undeclared (first use in this function) arch/mn10300/unit-asb2305/pci.c:481: error: (Each undeclared identifier is reported only once arch/mn10300/unit-asb2305/pci.c:481: error: for each function it appears in.) Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ken Cox <jkc@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * MN10300: Enable IRQs more in system call exit work pathDavid Howells2013-05-301-13/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable IRQs when calling schedule() for TIF_NEED_RESCHED and do_notify_resume(). If interrupts are enabled during do_notify_resume(), a warning can be seen (see lower down). Whilst we're at it, resume_userspace can be made local to entry.S as it is not called outside of there and it can be merged with the part of work_resched that occurs after schedule() is called. WARNING: at kernel/softirq.c:160 local_bh_enable+0x42/0xa0() Call Trace: local_bh_enable+0x42/0xa0 unix_release_sock+0x86/0x23c unix_release+0x20/0x28 sock_release+0x17/0x88 sock_close+0x20/0x28 __fput+0xc9/0x1fc ____fput+0xb/0x10 task_work_run+0x64/0x78 do_notify_resume+0x53d/0x544 work_notifysig+0xa/0xc Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ken Cox <jkc@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | * MN10300: Fix ret_from_kernel_threadDavid Howells2013-05-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ret_from_kernel_thread needs to set A2 to the thread_info pointer before jumping to syscall_exit. Without this, we never correctly start userspace. This was caused by the rejuggling of the fork/exec paths in commit ddf23e87a804 ("mn10300: switch to saner kernel_execve() semantics") Reported-by: Ken Cox <jkc@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ken Cox <jkc@redhat.com> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | Merge tag 'pinctrl-fixes-v3.10-3' of ↵Linus Torvalds2013-05-309-11/+323
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin-control fixes from Linus Walleij: - Six patches fixing up the suspend/resume and wakeup handling of the Samsung and Exynos drivers. - Errorpath fixes for four different drivers. All on the probe() errorpath. - Make the debugfs code for pin config take the right mutex. * tag 'pinctrl-fixes-v3.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: pinconf: take the right mutex pinctrl: sunxi: fix error return code in sunxi_pinctrl_probe() pinctrl: exynos: Handle suspend/resume of GPIO EINT registers pinctrl: samsung: Allow per-bank SoC-specific private data pinctrl: samsung: Add support for SoC-specific suspend/resume callbacks pinctrl: Don't override the error code in probe error handling ARM: EXYNOS: Fix EINT wake-up mask configuration when pinctrl is used pinctrl: exynos: Add support for set_irq_wake of wake-up EINTs pinctrl: samsung: fix suspend/resume functionality
| | * | pinctrl: pinconf: take the right mutexLinus Walleij2013-05-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pinconf_dgb_config_print() takes the per-pincontroller mutex, when what it wants to take is actually the pin maps mutex. Reported-by: James Hogan <james.hogan@imgtec.com> Cc: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | pinctrl: sunxi: fix error return code in sunxi_pinctrl_probe()Wei Yongjun2013-05-271-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix to return a negative error code from the devm_clk_get() error handling case instead of 0, as done elsewhere in this function. Introduced by commit 950707c0eb5c7aeaa2c446a04c824f4be686d2f6 (pinctrl: sunxi: add clock support) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | pinctrl: exynos: Handle suspend/resume of GPIO EINT registersTomasz Figa2013-05-272-3/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some GPIO EINT control registers needs to be preserved across suspend/resume cycle. This patch extends the driver to take care of this. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | pinctrl: samsung: Allow per-bank SoC-specific private dataTomasz Figa2013-05-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch extends pin bank descriptor structure with SoC-specific private data field that allows SoC-specific drivers to store their own private data. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | pinctrl: samsung: Add support for SoC-specific suspend/resume callbacksTomasz Figa2013-05-272-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SoC-specific driver might require additional save and restore of registers. This patch adds pair of SoC-specific callbacks per pinctrl device to account for this. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | pinctrl: Don't override the error code in probe error handlingAxel Lin2013-05-273-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise, we return 0 in probe error paths when gpiochip_remove() returns 0. Also show error message if gpiochip_remove() fails. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | ARM: EXYNOS: Fix EINT wake-up mask configuration when pinctrl is usedTomasz Figa2013-05-271-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On DT-enabled systems pinctrl-exynos driver is responsible for handling of wake-up EINT interrupts. This patch adjusts wake-up mask configuration code to take wake-up mask value from pinctrl-exynos driver on DT-enabled systems. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | pinctrl: exynos: Add support for set_irq_wake of wake-up EINTsTomasz Figa2013-05-271-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support of IRQ wake-up ability configuration for wake-up EINTs on Exynos SoCs. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | pinctrl: samsung: fix suspend/resume functionalityDoug Anderson2013-05-272-0/+153
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GPIO states need to be restored after s2r and this is not currently supported in the pinctrl driver. This patch saves the gpio states before suspend and restores them after resume. Saving and restoring is done very early using syscore_ops and must happen before pins are released from their powerdown state. Patch originally from Prathyush K <prathyush.k@samsung.com> but rewritten by Doug Anderson <dianders@chromium.org>. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Doug Anderson <dianders@chromium.org> Tested-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | Merge tag 'fixes-for-linus' of ↵Linus Torvalds2013-05-297-17/+107
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM Exynos fixes from Olof Johansson: "Here's a shorter set of fixes for 3.10, all for Samsung Exynos platforms. It also includes a defconfig update so that exynos_defconfig provides a meaningful set of drivers to boot an unmodified kernel on the Samsung ARM-based Chromebooks." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: exynos: defconfig update ARM: SAMSUNG: Add names to fimd0 IRQ resources ARM: EXYNOS: fix software reset logic for EXYNOS5440 SOC ARM: EXYNOS: Fix support of Exynos4210 rev0 SoC ARM: dts: Enabling samsung-usb2phy driver for exynos5250
| | * | ARM: exynos: defconfig updateOlof Johansson2013-05-281-8/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This turns on a number of configs that are useful on the Chromebook, but also good to have on in general: * USB host and MMC drivers(!) * I2C GPIO arbitration driver * CYAPA trackpad driver * simplefb * CROS EC and keyboard drivers * S5M8767 driver * MAX77686 drivers * MAX8997 driver * DEVTMPFS + mount * DM_CRYPT (as module) * CRYPTOLOOP * HIGHMEM * PRINTK timestamps This also turns off DEBUG_LL, and switches the hardcoded Samsung lowlevel uart to uart 3 (which is only used to show the "uncompressing kernel" message at boot, it seems). Signed-off-by: Olof Johansson <olof@lixom.net> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Tushar Behera <tushar.behera@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com>
| | * | Merge tag 'samsung-fixes-3' of ↵Olof Johansson2013-05-276-9/+61
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes From Kukjin Kim: Fixes following for v3.10 - to get usb2 working on the Chromebook with adding the usb phy node for usb2 on exynos5250 - supporting exynos4210 rev0 SoC - exynos5440 restart applying only to powered-on domains - drm-exynos probe failure with adding resource names to fimd0 platform device * tag 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: SAMSUNG: Add names to fimd0 IRQ resources ARM: EXYNOS: fix software reset logic for EXYNOS5440 SOC ARM: EXYNOS: Fix support of Exynos4210 rev0 SoC ARM: dts: Enabling samsung-usb2phy driver for exynos5250
| | | * | ARM: SAMSUNG: Add names to fimd0 IRQ resourcesTomasz Figa2013-05-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 1977e6d8 (drm/exynos: change the method for getting the interrupt) the Exynos DRM FIMD driver requires IRQ resources to be named. This patch fixes probe failure in non-DT cases by adding appropriate resource names to fimd0 platform device. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| | | * | ARM: EXYNOS: fix software reset logic for EXYNOS5440 SOCJungseok Lee2013-05-251-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes software reset logic. Software reset applies only to powered-on domains in SOC because software reset to all domains causes reboot failure. Signed-off-by: Jungseok Lee <jays.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| | | * | ARM: EXYNOS: Fix support of Exynos4210 rev0 SoCTomasz Figa2013-05-254-5/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch extends exynos_init_time() function to handle Exynos4210 rev0 SoC, which differs in availability of system timers and needs different clocksource initialization. This makes it possible to use exynos_init_time() function as init_time callback for all Exynos-based boards, including Universal_C210, which originally had to use samsung_timer_init(). Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| | | * | ARM: dts: Enabling samsung-usb2phy driver for exynos5250Vivek Gautam2013-05-211-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding usbphy node for Exynos5250 along with the necessary device data to be parsed. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
| * | | | Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2013-05-2823-164/+163
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm fixes from Dave Airlie: "This is mostly exynos and intel fixes, along with some vblank patches I lost from Rob a few months ago that make wayland work better on lots of GPUs, also a qxl kconfig fix." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (22 commits) qxl: fix Kconfig deps - select FB_DEFERRED_IO drm/exynos: replace request_threaded_irq with devm function drm/exynos: remove unnecessary devm_kfree drm/exynos: fix build warnings from ipp fimc drm/exynos: cleanup device pointer usages drm/exynos: wait for the completion of pending page flip drm/exynos: use drm_send_vblank_event() helper drm/i915: avoid premature DP AUX timeouts drm/i915: avoid premature timeouts in __wait_seqno() drm/i915: use msecs_to_jiffies_timeout instead of open coding the same drm/i915: add msecs_to_jiffies_timeout to guarantee minimum duration drm/i915: force full modeset if the connector is in DPMS OFF mode drm/exynos: page flip fixes drm/exynos: exynos_hdmi: Pass correct pointer to free_irq() drm/exynos: exynos_drm_ipp: Fix incorrect usage of IS_ERR_OR_NULL drm/exynos: exynos_drm_fbdev: Fix incorrect usage of IS_ERR_OR_NULL drm/imx: use drm_send_vblank_event() helper drm/shmob: use drm_send_vblank_event() helper drm/radeon: use drm_send_vblank_event() helper drm/nouveau: use drm_send_vblank_event() helper ...
| | * | | | qxl: fix Kconfig deps - select FB_DEFERRED_IOAndrew Jones2013-05-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| | * | | | Merge branch 'drm-intel-fixes' of ↵Dave Airlie2013-05-246-32/+87
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~danvet/drm-intel into drm-next Daniel writes: A few fixes, nothing shocking: - More Haswell pci ids. Includes a pile of marketing spare ids (which despite the spare moniker show up all over the place). - Fix a regression in handling modeset failures, resulting in black screens on 3 pipe setups when we've run out of pch plls (Chris). - Fix up the setcrtc semantics to unconditionally enable the outputs. Juding from git digging that has (kinda) always been the case and neatly fixes a few long-standing (i.e. forever) bug reports (Imre). - jiffies_timeout + 1 patches from Imre. They partially fix spurious wait_event failures in the interrupt-driven dp aux/i2c code. The other part is a core patch for the wait_event macros going in through -mm. A few patches more than strictly required since Imre is pushing for a general solution in 3.11. * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: avoid premature DP AUX timeouts drm/i915: avoid premature timeouts in __wait_seqno() drm/i915: use msecs_to_jiffies_timeout instead of open coding the same drm/i915: add msecs_to_jiffies_timeout to guarantee minimum duration drm/i915: force full modeset if the connector is in DPMS OFF mode drm/i915: Propagate errors back from fb set-base drm/i915: Adding more reserved PCI IDs for Haswell.
| | | * | | | drm/i915: avoid premature DP AUX timeoutsImre Deak2013-05-222-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During DP AUX communication we might time out 1 jiffy too early, because the calculated expiry jiffy value is one less than needed. This is only one reason for false DP AUX timeouts. For a complete solution we also need the following fix, which is now queued for mainline: http://marc.info/?l=linux-kernel&m=136748515710837&w=2 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64133 Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | | * | | | drm/i915: avoid premature timeouts in __wait_seqno()Imre Deak2013-05-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the moment wait_event_timeout/wait_event_interruptible_timeout may time out 1 jiffy too early, as the calculated expiry time is 1 less than needed. Besides timing out too early this also means that the calculation of the remaining time will be incorrect and we will pass a non-zero remaining time to user space in case of a time out. This is one reason for the following bugzilla report: Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64270 Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | | * | | | drm/i915: use msecs_to_jiffies_timeout instead of open coding the sameImre Deak2013-05-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | | * | | | drm/i915: add msecs_to_jiffies_timeout to guarantee minimum durationImre Deak2013-05-221-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need this to avoid premature timeouts whenever scheduling a timeout based on the current jiffies value. For an explanation see [1]. The following patches will take the helper into use. Once the more generic solution proposed in the thread at [1] is accepted this patch can be reverted while keeping the follow-up patches. [1] http://marc.info/?l=linux-kernel&m=136854294730957&w=2 Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | | * | | | drm/i915: force full modeset if the connector is in DPMS OFF modeImre Deak2013-05-221-2/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the driver's assumed behavior for a modeset with an attached FB is that the corresponding connector will be switched to DPMS ON mode if it happened to be in DPMS OFF (or another power save mode). This wasn't enforced though if only the FB changed, everything else (format, connector etc.) remaining the same. In this case we only set the new FB base and left the connector in the old power save mode. Fix this by forcing a full modeset whenever there is an attached FB and any affected connector is in a power save mode. V_2: Run the test for encoders in power save mode outside the the test for fb change: user space may have just disabled the encoders but left everything else in place. Make sure the connector list is not empty before running this test. Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Egbert Eich <eich@suse.de> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61642 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59834 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59339 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64178 Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> [danvet: Apply Jani's s/connector_off/is_crtc_connector_off bikeshed.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | | * | | | drm/i915: Propagate errors back from fb set-baseChris Wilson2013-05-211-15/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Along the modesetting short cut where we skip trying to do a full modeset and instead simply update the framebuffer base registers, we failed to handle any errors reported. This regression has been introduced in commit 94352cf9a5328bb1a44288e6c2c1276695f8a356 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Jul 5 22:51:56 2012 +0200 drm/i915: push crtc->fb update into pipe_set_base Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | | * | | | drm/i915: Adding more reserved PCI IDs for Haswell.Rodrigo Vivi2013-05-211-11/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At DDX commit Chris mentioned the tendency we have of finding out more PCI IDs only when users report. So Let's add all new reserved Haswell IDs. This patch also fix GT3 names. I'no not sending in separated patche because names are only in few comments and not in variable names. v2: Fix some mobile ids (by Paulo) References: http://bugs.freedesktop.org/show_bug.cgi?id=63701 Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> Cc: stable@vger.kernel.org Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | | | | Merge branch 'exynos-drm-fixes' of ↵Dave Airlie2013-05-2412-77/+64
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next Inki writes: This pull request includes drm_send_vblank_event() helper relevant patch I missed and code cleanups. And also it fixes a pended page flip issue. * 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: replace request_threaded_irq with devm function drm/exynos: remove unnecessary devm_kfree drm/exynos: fix build warnings from ipp fimc drm/exynos: cleanup device pointer usages drm/exynos: wait for the completion of pending page flip drm/exynos: use drm_send_vblank_event() helper drm/exynos: page flip fixes drm/exynos: exynos_hdmi: Pass correct pointer to free_irq() drm/exynos: exynos_drm_ipp: Fix incorrect usage of IS_ERR_OR_NULL drm/exynos: exynos_drm_fbdev: Fix incorrect usage of IS_ERR_OR_NULL Conflicts: drivers/gpu/drm/exynos/exynos_hdmi.c
| | | * | | | | drm/exynos: replace request_threaded_irq with devm functionSeung-Woo Kim2013-05-234-26/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devm_request_threaded_irq is used instead of request_threaded_irq and free_irq is removed. Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | | * | | | | drm/exynos: remove unnecessary devm_kfreeSeung-Woo Kim2013-05-232-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devm_kfree does not need for fail case of probe function and for remove function. Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | | * | | | | drm/exynos: fix build warnings from ipp fimcSeung-Woo Kim2013-05-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Becuase of order of headers, there are build warnings and they are fixed with this patch. Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | | * | | | | drm/exynos: cleanup device pointer usagesSeung-Woo Kim2013-05-239-29/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Struct device pointer got from platform device pointer is already alsigned as variable, but some functions do not use device pointer. So this patch replaces thoes usages. Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | | * | | | | drm/exynos: wait for the completion of pending page flipInki Dae2013-05-231-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the issue that drm_vblank_get() is failed. The issus occurs when next page flip request is tried if previous page flip event wasn't completed yet and then dpms became off. So this patch make sure that page flip event is completed before dpms goes to off. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | | * | | | | drm/exynos: use drm_send_vblank_event() helperRob Clark2013-05-231-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rebased. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | | * | | | | drm/exynos: page flip fixesRob Clark2013-05-221-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The event wouldn't be on any list at this point, so nothing to delete it from. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | | * | | | | drm/exynos: exynos_hdmi: Pass correct pointer to free_irq()Lars-Peter Clausen2013-05-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | free_irq() expects the same pointer that was passed to request_threaded_irq(), otherwise the IRQ is not freed. The issue was found using the following coccinelle script: <smpl> @r1@ type T; T devid; @@ request_threaded_irq(..., devid) @r2@ type r1.T; T devid; position p; @@ free_irq@p(..., devid) @@ position p != r2.p; @@ *free_irq@p(...) </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | | * | | | | drm/exynos: exynos_drm_ipp: Fix incorrect usage of IS_ERR_OR_NULLSachin Kamat2013-05-221-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | None of these functions actually return a NULL pointer. Hence use IS_ERR() instead. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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